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<!--href资源路径作用类是图片标签的src-->
<a href="http://www.baidu.com">超链接1</a>
<a href="03简历练习.html">超链接2</a>
<a href="a.jpg">超链接3</a>
<a href="http://tmooc.cn">
    <img src="a.jpg" alt="" width="50">
</a><br>
两只老虎.........<br>
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<a id="top">中间位置</a>
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没有最后<a href="#top">回到id位置</a>
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